4,064 Answered Questions for the topic biology

04/21/21

Can anyone help me? Please and thank you!

A sample of 0.8moles of gas was found to have a volume of 6,701mL and a temperature of 177K. What is the pressure of the sample in kPa?

04/21/21

I need help before midnight, please!

A sample of 2.9moles of gas was found to have a pressure of 0.3atm and a temperature of -60oC. What is the volume of the sample in liters?

04/21/21

Can anyone help me before midnight?

A sample of 9.9moles of gas was found to have a volume of 1.8L and a pressure of 57kPa. What is the temperature of the sample in kelvin?

04/21/21

How many moles are in this gas sample? Please help if possible!

A sample of gas was found to have a volume of 16.4L, a pressure of 1.7atm, and a temperature of 176K. How many moles is the gas sample?

04/21/21

need help before midnight, please!

A sample of 2.9moles of gas was found to have a volume of 2.7L and a temperature of 273K. What is the pressure of the sample in atmospheres?
Biology

04/21/21

please help me with this science question

Silver bromide can be "dissolved" by the action of aqueous Na2S2O3 (called "hypo") after any silver that has been "activated" by exposure to light is reduced to metallic silver by another reagent.... more
Biology

04/20/21

a. What is the frequency of the a allele? b. What is the frequency of the heterozygous genotype? c. What is the frequency of the homozygous dominant genotype?

A population of butterflies exhibits two phenotypes for antennae - - club shaped are dominant over curly, represented by the alleles A and a. In a population of 1000 butterflies, 250 have curly... more
Biology

04/20/21

Answer!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Blood cholesterol higher than recommended levels increases the chances of cardiovascular diseases and risks of heart attacks and strokes. Check all the factors that can contribute to high... more

04/20/21

HELP BIOLOGY ITS URGENT

The following is a pre-mRNA sequence. (Recall the 3 things that need to be done to pre-mRNA before it can leave the nucleus.) Please edit and process this sequence to make it a mature mRNA... more
Biology Science Ecology

04/20/21

What are some good topics in biology to choose for an open discussion day in class?

Or current events that are interesting

04/19/21

What are the effects of a C2 and C3 spinal cord injury?

A 20-year-old man suffered spinal cord injury at the C2 to C3 level as the result of a motorcycle accident.  Explain the effects of this man’s injury on ventilation and communication, sensorimotor... more

04/18/21

I need help on this X-linked Biology question

A human female "carrier" who is heterozygous for the recessive, sex-linked trait causing red-green color blindness, marries a normal male. What proportion of their male progeny will have red-green... more

04/18/21

HELP WITH BIOLOGY URGENT PLS

What would be the anticodon on a tRNA which is attached to the amino acid Valine. The code for Valine is GUC.
Biology

04/17/21

Why does lack of cell control effect the body

Why do cells which lack cell cycle control exhibit karyotypes which look physically different than cells with a normal cell cycle?
Biology

04/17/21

difference between karyotypes vs cancerous cells

what differences you might observe when comparing the karyotypes of human cells that undergo normal cell cycle control versus cancerous cells
Biology Genetics

04/17/21

Would a AB+ Mom be able to have a kid with an A+ Dad?

If yes, what would be the possible blood type for the child.

04/16/21

How agrin and also neuregulin work to maintain muscle viability ?

How agrin and also neuregulin work to maintain muscle viability ?
Biology

04/16/21

What type of relationship is this?

After people eat coconuts, the coconut shells are discarded. Some of these discarded shells in Indonesia are picked up by a species of octopus. The octopi use the shells for shelter and... more
Biology

04/16/21

Which relationship is it?

A wasp lays its eggs inside a tomato hornworm caterpillar. When the wasp larvae hatch they use the caterpillar tissue for foodWhich relationship is... more
Biology

04/16/21

What type of relationship is it?

A squid emits light that can hide it from predators. The light is actually produced by bacteria living in part of the squid’s body called a light organ. The squid provides nourishment for the... more

04/16/21

HELP ITS URGENT

Each of the organisms featured in this lab exhibited characteristics and structures which allowed them to adapt to and be successful in their environment. One of those structures were the setae of... more

04/16/21

HELP WITH BIOLOGY URGENT

Sickle-cell anemia is an interesting genetic disease. Normal homozygous individials (SS) have normal blood cells that are easily infected with the malarial parasite. Thus, many of these individuals... more

04/16/21

HELP WITH BIOLGY

Describe two of the common misconceptions about the Evolutionary theory.  

04/16/21

HELP WITH BIOLOGY URGENT

The following is a pre-mRNA sequence. (Recall the 3 things that need to be done to pre-mRNA before it can leave the nucleus.) Please edit and process this sequence to make it a mature... more
Biology

04/16/21

Non-coding DNA explanation

Some parts of DNA do not code for proteins. Describe how non-coding parts of DNA can affect the expression of genes​.

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