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Romashka-Z-Leto [24]
4 years ago
8

Hey can someone help me this is due today thank you! :D

Biology
2 answers:
oksian1 [2.3K]4 years ago
7 0

Answer:

The human body contains one cell but the amoebas and archaea contain's many cells

hope it helps

Explanation:

Hunter-Best [27]4 years ago
5 0

Answer:

Many cells: humans

Single cell: Bacteria known as protozoa

Explanation:

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Differences between pteridophyta and spermatophyta ​
LenKa [72]

Answer:

Pteridophytes are vascular plants but they do not produce flowers and seeds which mean their source of reproduction is unknown or hidden.

On the contrary, Spermatophytes as the name indicates, are seed bearing plants. They produced seeds and flowers. Examples are flowering plants, cactus, leather flower, buttercup and may more.

Explanation:

7 0
3 years ago
Describe the source of food for the first 3 levels in the food chain and explain why it takes less land, water, air to produce a
Ronch [10]
This question is incomplete as the specific food chain is not provided. In general, a food chain will have a primary producer at the base of the chain. This is an organism that is able to utilise a form of energy to convert carbon dioxide in the atmosphere to a carbohydrate. For terrestrial food chains, these are typically plants, who by utilising the energy from the sun, are able to convert carbon dioxide to carbohydrates. The subsequent level in the food chain may be a primary consumer, typically herbivores, that consume plant matter. Subsequent links in the chain would typically be secondary consumers, who would be carnivores, omnivores or decomposers. Carnivores would typically be predators and would be at the apex of the food chain. Energy is lost from one link to the subsequent link in the food chain, through basic respiration and inefficient energy transfer from one link to another. This explains why more resources (land, water and air) are required to grow meat rather than plant matter. More of the sun's energy is available within the lower trophic levels in a food chain, before much of it is lost as energy moves up the food chain. An easy example to illustrate this is that much of the livestock raised in the USA is fed grain. If people rather ate the grain than the livestock, they could obtain all their required energy from a smaller amount of grain then would be needed to raise the meat they require. 
5 0
4 years ago
Observe the following diagram. If the speed of the wave stays the same and the period decreases, what wave property would also d
mario62 [17]
I guess the wavelength as the period becomes smaller the wavelength will decrease and frequency will increase all the rest should remain the same

Hope that helps
6 0
3 years ago
Read 2 more answers
How can some spores survive adverse conditions​
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Answer:

In biology, a spore is a unit of sexual or asexual reproduction that may be adapted for dispersal and for survival, often for extended periods of time, in unfavourable conditions. Spores form part of the life cycles of many plants, algae, fungi and protozoa.

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Embryological evidence suggests that the echinoderms are closely related to
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Echinoderms, like chordates, are deuterostomes and are therefore thought to be the most closely related of the major phyla to the chordates
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4 years ago
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