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pickupchik [31]
3 years ago
12

A group of tissues in which small blood vessels from the mother and offspring intertwine but do not connect is the:

Biology
1 answer:
MaRussiya [10]3 years ago
5 0

Solution:

nervous system, digestive system, and umbilical cord. A group of tissues in which small blood vessels from the mother and offspring intertwine but do not connect.

This is the required answer.

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Which of the following would cause an error in DNA replication?
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Answer: I believe it is A. DNA polymerase checking the DNA

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3 years ago
How oxygen, nutrients, and wastes are exchanged between maternal and fetal
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Answer: The blood vessels in the umbilical cord, the fetus receives all the necessary nutrition, oxygen, and life support from the mother through the placenta.

Explanation:

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What are bridge animal? Give examples.​
JulijaS [17]

Answer:

\huge\fbox\red{ᴀ}\huge\fbox\orange{ⁿ} \huge\fbox\pink{s}\huge\fbox\green{ʷ} \huge\fbox\blue{ᴇ}\huge\fbox\purple{ʳ}\

Wildlife crossings may include: underpass tunnels or wildlife tunnels, viaducts, and overpasses or green bridges (mainly for large or herd-type animals); amphibian tunnels; fish ladders; Canopy bridge (especially for monkeys and squirrels), tunnels and culverts (for small mammals such as otters, hedgehogs, and badgers.

This know as bridge animals

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8 0
2 years ago
Suppose that in humans the ability to roll the tongue (R) is dominant to being unable to roll it (r), and having freckles (F) is
tatuchka [14]

Answer:

1/4

Explanation:

A heterozygous woman for both traits (RrFf) marries with a man with no freckles (ff) who can't roll his tongue (rr).

The cross is: RrFf X rrff.

The woman can produce the gametes <em>RF, Rf, rF </em>and <em>rf</em>

The man can only produce <em>rf </em>gametes.

<u>The possible offspring that can arise from the combination of those gametes is:</u>

  • 1/4 RrFf Freckled, tongue-rolling
  • 1/4 Rrff Freckled, unable to roll tongue
  • 1/4 rrFf Not freckled, tongue-rolling
  • 1/4 rrff Not freckled, unable to roll tongue
4 0
3 years ago
Secondary consumers are organisms that directly feed in primary consumers what animal s on your food web would be classified as
kramer

Answer:The Food Chain: The answer has to do with trophic levels. As you probably know, the organisms at the base of the food chain are photosynthetic; plants on land and phytoplankton (algae) in the oceans. These organisms are called the producers, and they get their energy directly from sunlight and inorganic nutrients. The organisms that eat the producers are the primary consumers. They tend to be small in size and there are many of them. The primary consumers are herbivores (vegetarians). The organisms that eat the primary consumers are meat eaters (carnivores) and are called the secondary consumers. The secondary consumers tend to be larger and fewer in number. This continues on, all the way up to the top of the food chain. About 50% of the energy (possibly as much as 90%) in food is lost at each trophic level when an organism is eaten, so it is less efficient to be a higher order consumer than a primary consumer. Therefore, the energy transfer from one trophic level to the next, up the food chain, is like a pyramid; wider at the base and narrower at the top. Because of this inefficiency, there is only enough food for a few top level consumers, but there is lots of food for herbivores lower down on the food chain. There are fewer consumers than producers.

Land and aquatic energy pyramids

Trophic Level Desert Biome Grassland Biome Pond Biome Ocean Biome

Producer (Photosynthetic) Cactus Grass Algae Phytoplankton

Primary Consumer (Herbivore) Butterfly Grasshopper Insect Larva Zooplankton

Secondary Consumer (Carnivore) Lizard Mouse Minnow Fish

Tertiary Consumer (Carnivore) Snake Snake Frog Seal

Quaternary Consumer (Carnivore) Roadrunner Hawk Raccoon Shark

Food Web: At each trophic level, there may be many more species than indicated in the table above. Food webs can be very complex. Food availability may vary seasonally or by time of day. An organism like a mouse might play two roles, eating insects on occasion (making it a secondary consumer), but also dining directly on plants (making it a primary consumer). A food web of who eats who in the southwest American desert biome might look something like this:

Explanation:

4 0
3 years ago
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