They make some of the proteins needed for photosynthesis , they are arranged in structures which allow maximum absorption of light every
The blood vessels farthest from the heart must have valves.
The valves which are present in the blood vessels prevent the backflow of the blood back into the specific organ.
There are different valves present in the heart are:
- The tricuspid valve is situated between the right atrium and right ventricle.
- The pulmonary valve is between the right ventricle and the pulmonary artery.
- The mitral valve is between the left atrium and left ventricle.
- The aortic valve is between the left ventricle and the aorta.
Other vales which are present in the blood vessels are in leg. Leg veins do require the valves. If not present the blood will go back down into the feet because of the gravity. Thus there are various valves present in the leg veins.
Valves in veins are bicuspid, meaning they have two flap-like structures that regulate blood flow in the vein.
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The gram stain differentiates two types of bacteria based on the composition of their cell walls. it uses a primary stain, a mordant, a decolorized, and a secondary stain to allow for the visualization of these structural differences.
This belongs to the domain animalistic because it is an animal. This belongs to the kingdom eukaryote because animals are eukaryotic! This belongs to the phylum chordates because it has a backbone. This belongs to the class is mammal because it is furry and warm blooded and provides for its young. This belongs to the order therapsid because it is a mammal. This belongs to the family bats because it contains wings. This belongs to the genus bat genus. I hope this helped!! Please name brainliest.
Answer:
B
Explanation:
The correct answer is option B
B) Lower frequency for both dewlap extension and push ups.
After a predatory attack, both dewlap extension and pushup decreases whereas during mating with the female both dewlap extension and pushup tend to increase. So, from the above comparison we can say that expected frequency of dewlap extensions a pushups in males while in the presence of females and a predator decreases.
