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3 years ago

The video describes a coevolutionary arms race between the Plasmodium parasite and its human hosts.

1 answer:

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One example of a coevolutionary arms race is when faster deer evolve and favor wolves and cougars that have stronger eyesight and senses of smell is a true statement.

Archaeplastids, which include red and green algae and land plants, are thought to have descended from a heterotrophic protist that engulfed a <u>cyanobacterium</u>.

Explanation:

Co-evolution leads to two species influencing the adaptations of each other over time. Co-evolutionary arms race evolves reciprocal adaptation between species are repeated cyclically.

Since the preys like the deer are faster, the predators have to be extra skillful to be better hunters. Hence, the predators like the wolves and cougar need to adapt themselves with better eyesight and sense of smell.

Archeaplastids are supergroups of eukaryotes. As per evolutionary lines, arecheaplastids were created due to endosymbiotic relationship between an eukaryotic cell and a cynabacterium which resulted in eukaryote engulfing the cyanobacterium.

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Allisa [31]

Answer:

Plants exchange oxygen and carbon dioxide. The oxygen is used for respiration and is also a waste product of photsynthesis. The carbon dioxide is used for photsynthesis.

During the day time, the stomata of the plant will open to let the carbon dioxide in for photsynthesis. Cabron dioxide diffuses into the leaf down a concetration gradient. oxygen will leave the leaf down the concentration gradient.

This process is the gas exchnage of plants.

How stomata open: Stomata open during the dayby absorbing water vapor, become turgid and and open. During the night, the stomata becomes flaccid and floppy. this causes it to close.

Explanation:

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2 years ago

Using the allele D to stand for a dominant sex-linked trait, show a cross with a woman who does not have a dominant sex-linked d

Mazyrski [523]

Answer:

There is no chance at all that the disorder carries out to their children that's if the woman has two dominant traits DD. If the woman has One dominant and one recessive Dd there is a 50% chance their kids may get the disorder.

Explanation:

3 0

3 years ago

I need the answer asap

ella [17]

Answer:

Executive

Explanation:

having the power to put plans, actions, or laws into effect.

8 0

2 years ago

Humans are different from each other in many ways, including in their sizes, shapes, skin color, facial features, and handedness

strojnjashka [21]

Answer:

<em>The correct option is C) Humans from different locations can donate blood and organs to one another.</em>

Explanation:

Organisms belonging to the same species can interbreed and produce fertile offsprings. As humans all around the world can interbreed and produce fertile embryo hence all human beings belong to the same species. Also, the organs and blood of organisms from the same species can be transferred depending on the compatibility. It is less likely for the human body to reject a graft from other human being rather than another species. Although, xenotransplantation has been practiced in the laboratory by scientists but it has not produced any good results.

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3 years ago

Neurotransmitters are released from axon terminals via

love history [14]

Answer:

Neurotransmitters are released from axon terminals via exocytosis

Explanation:

Dendrite is the receiving part of the presynaptic neuron, while axon is the transmitting part of the neuron. So, after initiation, action potentials travel down axons to the terminals. Action potential travels through the membrane of the presynaptic cell causing the voltage-gated channels permeable to calcium ions to open. Ca2+ flow through the presynaptic membrane and increase the Ca concentration in the cell which will activate proteins attached to vesicles that contain a neurotransmitter (e.g. acetylcholine). Vesicles fuse with the membrane of the presynaptic cell, thereby release their contents into the synaptic cleft-space between the membranes of the pre- and postsynaptic cells (exocytosis of the vesicle's content). Neurotransmitter ACh (from the vesicles) binds to its receptors on the postsynaptic membrane and its binding causes depolarization of the target cell (muscle cell). Depolarization occurs because sodium enters the cell as a result of neurotransmitter receptor binding.

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3 years ago