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My name is Ann [436]
3 years ago
8

How does smoking affect the cardiovascular system directly

Biology
1 answer:
serg [7]3 years ago
8 0

Answer:

The answers are A,B,E. If you can give only one answer, then it's B

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A four-year-old tree with a woody trunk experienced optimal growing conditions during its first two years of growth and drought
Romashka-Z-Leto [24]

Answer:

First two rings are thicker while the last two rings are thinner.

Explanation:

Due to the first two years of optimal growing conditions received by the tree, the width of trunk of the tree is thicker but due to drought conditions experienced by the tree during the most recent two years, there is very little increase occur in the width of the trunk because the tree is in stress condition   and for that reason the ring of trunk is thinner as compared to first two years.

6 0
3 years ago
Which correctly describes the set of clades that
fiasKO [112]

Complete question:

Which correctly describes the set of clades that contain the arthropods, from largest to smallest?

  1. Archaea: Eukaryotes: Opisthokonts: Animals: Protostomes Ecdysozoa: Arthropods
  2. Eukaryotes: Opisthokonts: Nuclearia: Animals: Protostomes Ecdysozoa: Arthropods
  3. Eukaryotes: Opisthokonts: Animals: Deuterostomes Ecdysozoa: Arthropods
  4. Eukaryotes: Opisthokonts: Animals: Protostomes: Ecdysozoa: Arthropods

Answer:

4. Eukaryotes: Opisthokonts: Animals: Protostomes: Ecdysozoa: Arthropods

Explanation:

Taxonomy is the study of different organisms, their classification into categories according to their morphological and molecular characteristics and their evolutionary relationships, and assigning to each them a binomial name.  

  • The eukarya domain is composed of all the unicellular or pluricellular organisms that have eukaryotic cells that characterize by having a well-defined nucleus surrounded by a complex biological membrane. They also present organelles delimitated by membranes. These organisms reproduce asexually and sexually.  
  • Animalia Kingdom: Includes different phyla closely relates.
  • The embryonary development of bilateral coelom animals makes a place for the division of two groups: protostomes and deuterostomes. Among protostomes might be mentioned the flatworms, annelids, mollusks, and arthropods. Protostomes show spiral initial segmentation, and the mouth develops as a first opening near the blastopore.  
  • Ecdysozoan Superphylum: Their bodies are covered by a cuticle that provides protection. They have a complete digestive system. They might reproduce sexually and asexually.
  • Phylum Arthropoda: Invertebrates characterized for having an exoskeleton, a segmented body, and articulated appendixes. A very diverse group with many different characteristics.
5 0
3 years ago
Which of the following describes or represents a property exclusive to all "living" things? Question 3 options: They are able to
slavikrds [6]

Answer:

All living organisms reproduce sexually

Explanation:

Not all living organism reproduce sexually. Plant and animal are also living organism but not all plants reproduces sexually. We have sexual and asexual reproduction in plant

Plant reproduce sexually through the fusion of male and female gametes followed by fertilization to produce an offspring. Offspring produce through sexual reproduction have both maternal and paternal makeup.

Asexual reproduction includes binary fission, budding, grafting. It is the production of the exact kind of the parent plant, it does not require fertilization and the parents and the progeny are 100% identical.

3 0
3 years ago
How is density calculated given mass and volume?
Genrish500 [490]
Mass divided by volume. I always remember it by a heart
7 0
3 years ago
Ecosystems involve living organisms interacting with non-living things in a productive way; how is photosynthesis an example of
IgorLugansk [536]

Photosynthesis deals with plants that are a living being receiving energy from sunlight which is not living.            

4 0
3 years ago
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