4,064 Answered Questions for the topic biology

01/10/20

Which vessel in the heart receives deoxygenated blood? a. Aorta b. Pulmonary Vein c. Vena Cava d. Pulmonary Artery
Follows • 1
Expert Answers •2

01/08/20

In which organelle are the components of the cell membrane made?
Follows • 1
Expert Answers •1
Biology

01/06/20

Write a short paragraph summarizing how the leaf structures you observed are adapted for leaf functions.
Follows • 1
Expert Answers •1
Biology

01/06/20

On the basis of your observations of chloroplast location in the leaf, which cells are the main photosynthetic cells?
Follows • 1
Expert Answers •2
Biology

01/06/20

How does the arrangement of leaves on a stem relate to the photosynthetic capacity of a plant?
Follows • 1
Expert Answers •1
Biology

01/06/20

What might be the advantage of a flat and thin leaf blade to the photosynthetic capacity of a leaf?
Follows • 1
Expert Answers •1
Biology

01/06/20

How might the location of chloroplasts in these cells be advantageous in light absorption?
Follows • 1
Expert Answers •1

01/02/20

Explain the homeostatic feedback mechanisms that control ventilation and circulation to include the pacemaker of the heart.
Explain the homeostatic feedback mechanisms that control ventilation and circulation to include the pacemaker of the heart.
Follows • 2
Expert Answers •1

12/31/19

What are some important features of achalasia?
Follows • 1
Expert Answers •2

12/24/19

Classify the type of erosion that could move sand along a shoreline
Follows • 1
Expert Answers •2
Biology

12/23/19

How the different type of cell components (organelles) influence the different tissue types
The task is: Prepare a PowerPoint descriptive presentation on tissues. This must include: Epithelial Tissue Connective Tissue Nerve tissue Muscle Tissue The question I need help with is ... more
Follows • 1
Expert Answers •1

12/20/19

To understand the structural activity relationship of a peptide drug molecule; see details below.

Hello, I need help with a mix of microbiology/biochem/chem/bio. I did an experiment where I made mimics of TB antibiotics in a lab. I need to understand the structural activity relationship of the... more
Follows • 2
Expert Answers •1
Biology

12/20/19

Andrew is watching cells under the microscope. He observes that a cell has just stopped dividing and is now undergoing rapid growth. Which part of the cell cycle is the cell he is observing in?
Andrew is watching cells under the microscope. He observes that a cell has just stopped dividing and is now undergoing rapid growth. Which part of the cell cycle is the cell he is observing in?
Follows • 1
Expert Answers •1
Biology

12/19/19

Increase in renewable resources affect human population
My question is does finding ways to increase the use of renewable resources reduce the worlds population or increase it?
Follows • 1
Expert Answers •1
Biology Chordates

12/19/19

Which of these are characteristics of all chordates during at least a portion of their development?
Pharyngeal clefts or slitsPost-anal tailNotochord
Follows • 1
Expert Answers •1

12/19/19

Which of the following would increase the rate of heat exchange between an animal and its environment?
VasoconstrictionWind blowing across the body surfaceCountercurrent heat exchangerBlubber or fat layer
Follows • 1
Expert Answers •1
Biology Diploblast

12/19/19

Which of the following is an example of a diploblast?
JellyfishLobsterHumanSnail
Follows • 1
Expert Answers •1

12/19/19

In most plants, the primary photosynthetic organs are the
RootsLeavesXylemMeristems
Follows • 1
Expert Answers •1

12/19/19

In the life cycle of a plant, which of the following gives rise to a gametophyte?
A gameteA sporophyte A sporeAn endospore
Follows • 2
Expert Answers •1
Biology Water Organisms

12/19/19

Generally speaking, the percentage of water in most organisms is best described as...
Between 20% and 30%.Precisely 35%.    Between 40 and 50%.Above 60%.
Follows • 1
Expert Answers •1
Biology Water Temperature

12/19/19

The specific heat of water is relatively high. This means that...
It takes a relatively small amount of energy to change its temperature.It tends to stabilize the temperatures of nearby land.It tends to destabilize the temperatures of nearby land, subjecting it... more
Follows • 1
Expert Answers •1

12/19/19

You are studying three populations of beetles...
Population A has 10 beetles, of which 1 is brown and 9 are red. Population B has 100 beetles, of which 10 are brown and 90 are red. Population C has 30 beetles; 3 of them are brown and 27 are red.... more
Follows • 2
Expert Answers •1

12/19/19

Which of the following is not an observation or inference on which Darwin's theory of natural selection is based?

Individuals adapt to their environments and, thereby, evolve.There is heritable variation among individuals.Populations produce more individuals than the environment can support, so there is... more
Follows • 1
Expert Answers •1

12/18/19

I need to understand the structure activity relationship of an antibiotic compound and its bioactivity

Molecule: WollamideMade analogsChanged sterechemDisk Diffusion assayB. SubitulisThe question what is the mechanism of action of Wollamide and why other analogs didnt not work or not inhibted.
Follows • 2
Expert Answers •1

12/18/19

I need to understand the structure activity relationship of an antibiotic compound and its bioactivity
Molecule: Wollamide Made analogsChanged sterechemDisk Diffusion assayB. Subitulis The question what is the mechanism of action of Wollamide and why other analogs didnt not work or not inhibted.
Follows • 2
Expert Answers •1

Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.

OR

Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.