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Bad White [126]
3 years ago
8

Why do males tend to have better cardiorespiratory fitness than females?

Biology
2 answers:
ipn [44]3 years ago
6 0
A ) males tend to have higher levels of hemoglobin in their blood
Mandarinka [93]3 years ago
6 0

A is the correct answer                                        

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Kim wants to grow some more plants in her garden.she has to plan carefully because she has an allergy to plant pollen.wich plant
abruzzese [7]
She will not be able to plant angiosperms. Angiosperms are plants that produce flowers, and in turn, pollen.

There are some plants though, known as ferns and other types that produce spores instead (which have the same function but don't trigger allergic symptoms).


Hope it helped,

Happy homework/ study/ exam!
8 0
3 years ago
Challenges of moving from an aquatic to a terrestrial environment You have the pleasure of observing wood frog tadpoles in a pon
blsea [12.9K]

Answer:

body size

more

circulatory system

egg deposition

Explanation:

Because of their large <em>body size</em> , ancestral amphibians likely faced challenges supporting themselves out of the aquatic environment.

Although there was far <em>more</em> oxygen available to gills in air than in water, the delicate structure of gills couldn't be supported in the terrestrial environment.

The costs of locomotion on land and greater oxygen demand from enlarged muscles led to modifications of the heart and <em>circulatory system</em>

These early amphibians could not venture too far away from water because <em>egg deposition</em> was restricted to moist environments.

3 0
3 years ago
What additional evidence gas emerged since the publication of darwins book to support the close evolutionary relationship betwee
Alexus [3.1K]
Implications of natural selection in shaping 99.4% nonsynonymous DNA identity between humans and chimpanzees: enlarging genus Homo. we compare approximately 90 kb of coding DNA nucleotide sequence from 97 human genes to their sequenced chimpanzee counterparts and to available sequenced gorilla, orangutan, and Old World monkey counterparts, and, on a more limited basis, to mouse. The nonsynonymous changes (functionally important), like synonymous changes (functionally much less important), show chimpanzees and humans to be most closely related, sharing 99.4% identity at nonsynonymous sites and 98.4% at synonymous sites. On a time scale, the coding DNA divergencies separate the human-chimpanzee clade from the gorilla clade at between 6 and 7 million years ago and place the most recent common ancestor of humans and chimpanzees at between 5 and 6 million years ago. The evolutionary rate of coding DNA in the catarrhine clade (Old World monkey and ape, including human) is much slower than in the lineage to mouse. Among the genes examined, 30 show evidence of positive selection during descent of catarrhines. Nonsynonymous substitutions by themselves, in this subset of positively selected genes, group humans and chimpanzees closest to each other and have chimpanzees diverge about as much from the common human-chimpanzee ancestor as humans do. This functional DNA evidence supports two previously offered taxonomic proposals: family Hominidae should include all extant apes; and genus Homo should include three extant species and two subgenera, Homo (Homo) sapiens (humankind), Homo (Pan) troglodytes (common chimpanzee), and Homo (Pan) paniscus (bonobo chimpanzee).

8 0
3 years ago
The spindle apparatus disintegrates during _____. anaphase telophase interphase metaphase
IRINA_888 [86]

Answer;

-Telophase

Explanation;

-The spindle apparatus disintegrates during the telophase of mitosis. Telophase is the final stage of mitosis.

-During this phase, the sister chromatids reach opposite poles. The small nuclear vesicles in the cell begin to re-form around the group of chromosomes at each end.

-As the nuclear envelope re-forms by associating with the chromosomes, two nuclei are created in the one cell. Telophase is also marked by the dissolution of the kinetochore microtubules and the continued elongation of the polar microtubules.

6 0
3 years ago
Read 2 more answers
Unlike in prokaryotic cells, replication in eukaryotic cells...
Kitty [74]
The answer is B) can start in many different places in a sequence at the same time.
These different places are called Origin of replication. :)))
i hope this is helpful
have a nice day  
4 0
3 years ago
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