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Tresset [83]
3 years ago
7

A scientist is studying specialized cells that help pump blood. Which cells is she most likely studying?

Biology
1 answer:
erica [24]3 years ago
8 0

Answer:

B. cardiac cells, which are a type of muscle cell

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What is photosensithesis?
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Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the organism's activities.

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Your normal heartbeat before exercise is called your ____________________.
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Heart rate i think

Explanation:

6 0
3 years ago
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in humans, a combination of XX chromosomes results in a female zygote and that of XY result in a male zygotes. From whom does th
devlian [24]
The answer is: from mother

In a human diploid somatic cell (2n), there are<span> in total 46 chromosomes</span> - 22 autosomal chromosomes present in two copies and 1 pair of sex chromosomes. This means there are 23 pairs of chromosomes. In males, there is one X and one Y chromosome (XY) while in females, there are two XX chromosomes (XY).
During the formation of gametes, a female could give only X chromosomes, so gametes from the mother contain one X chromosome. But, a male could give X or Y chromosome, so gametes from the father contain either X or Y chromosome.
Female gamete and male gamete fuse to form a zygote. Male zygote must contain both X and Y chromosome. It inherits Y chromosome only from the father, so X chromosome must be inherited from the mother.
6 0
3 years ago
List several species and several individual characteristics of dogs.
castortr0y [4]
Golden retrievers: loyal and playful family dogs
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3 years ago
Large blue whales that are up to 30 meters long live primarily on ________ that is/are only about 6 cm long.
zalisa [80]

Large blue whales that are up to 30 meters long live primarily on krill that is/are only about 6 cm long.

Blue whales belong to the class of mammals. They are the largest animals on the Earth. They live in marine habitat. They can be more than 100 feet long. The weight of a single whale can be equal to 30 elephants. And they can live for as long as 80-90 years.

Krill are small animals belonging to the class of crustaceans. They are present in oceans. Krill are actually zooplanktons. They are majorly the food of whales. Krill are filter-feeders.

To know more about blue whales, here

brainly.com/question/14803609

#SPJ4

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